Versions/CU-274564

Update Information

 * Slight increase to dust comet damage.
 * Dust comet is now regolith.
 * Tweak the comet dirt spawning rules to prevent the dirt from stacking up.
 * Fixed a crash that could occur if a comet hit a building that didn't have an audio category setup for it.
 * Fixed a crash that could occur if a liquid droplet fell outside the world.
 * Fixed a crash that could occur when FMOD failed to initialize.
 * Fixed a crash that could occur if you had more than the maximum autosave files by making your own copies.
 * Fixed a crash that could occur on shutdown.
 * Fixed a crash that could occur when placing gases using the sandbox tools.